2015-2018 Audi A8/S8 Coolant / Water Hose 4H1819344
OEM Part #: 4H1-819-344 (4H1819344)
Actual photo
The exact part you’ll receive — not a stock photo.
$32.49
Used
Donor2015 Audi A8 · 4.0L
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Genuine OEM Used
SKU: 674771
Donor Vehicle: 2015 Audi A8 · 4.0L
2 photos
$32.49
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Genuine OEM Used
SKU: 639025
Donor Vehicle: 2017 Audi A8 · 4.0L
2 photos
$34.49
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Genuine OEM Used
SKU: 665383
Donor Vehicle: 2015 Audi A8 · 4.0L
2 photos
$36.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
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This used OEM Audi Coolant / Water Hose (4H1819344) is a genuine factory hose removed from a salvage donor. It routes engine coolant to maintain proper operating temperature across the 3.0L V6 Turbo Diesel, 4.0L V8 Turbo, and 6.3L W12 gasoline engines in the A8 and S8. A cracked or collapsed hose can cause coolant loss, overheating, or low-coolant warnings. BMW, Mercedes, or VW owners: this is an Audi-specific part—verify fitment before purchase.
Specifications
| Fits Vehicle Model | A8, S8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4H1-819-344 (4H1819344) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 13 vehicle configurations across 1 make, 2015-2018.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 13 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2015 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | |
| 2015 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2016 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2016 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | |
| 2016 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2016 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2017 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2018 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2018 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2017 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo |